采用溶胶-凝胶法合成了不同粒径的Al2O3-30％(质量分数)TiO2纳米复合粉体,用喷雾干燥法对合成粉体进行喷雾造粒,造粒后的粉体通过等离子喷涂制备Al2O3/TiO2复合涂层,最后对涂层结构和性能进行了表征.涂层结构和形貌分析表明制备的涂层具有微米/纳米复合结构,初始粉体粒径对涂层的结构和致密度影响很小；涂层摩擦学性能测试表明复合涂层的磨损率随初始粉体粒径的增大而减小,初始粉体粒径为100nm左右时,复合涂层的磨损率最低.复合涂层的磨损机制为裂纹扩展导致的磨损剥落.
参考文献
| [1] | WANG Y;JIANG S;WANG M et al.Abrasive wear characteristics of plasma sprayed nanostructured alumina/titania coating[J].Wear,2000,237(02):176-185. |
| [2] | R. S. Lima;B. R. Marple .Thermal Spray Coatings Engineered from Nanostructured Ceramic Agglomerated Powders for Structural, Thermal Barrier and Biomedical Applications: A Review[J].Journal of Thermal Spray Technology,2007(1):40-63. |
| [3] | FAUCHAIS P .Understanding plasma spraying[J].Journal of Physics D:Applied Physics,2004,37(09):86-108. |
| [4] | Song EP;Ahn J;Lee S;Kim NJ .Microstructure and wear resistance of nanostructured Al2O3-8wt.%TiO2 coatings plasma-sprayed with nanopowders[J].Surface & Coatings Technology,2006(3/4):1309-1315. |
| [5] | E. H. Jordan;M. Gell;Y. H. Sohn;D. Goberman;L. Shaw;S. Jiang;M. Wang;T. D. Xiao;Y. Wang;P. Strutt .Fabrication and evaluation of plasma sprayed nanostructured alumina-titania coatings with superior properties[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(1):80-89. |
| [6] | BANSAL P;PADTURE N P;VASILIEV A .Improved interfa cial mechanical properties of Al2O3-13wt% TiO2 plasma-sprayed coatings derives from nanocrystalline powders[J].Acta Materialia,2003,51(10):2959-2970. |
| [7] | 王铀,杨勇.热喷涂纳米结构涂层的研究进展及在外军舰艇上的应用[J].中国表面工程,2008(01):6-15. |
| [8] | 陈煌,林新华,曾毅,丁传贤.热喷涂纳米陶瓷涂层研究进展[J].硅酸盐学报,2002(02):235-239. |
| [9] | CHEN H;LEE S W;DU H et al.Influence of feedstock and spraying parameters on the depositing efficiency and microhardhess of plasma-sprayed zirconia coatings[J].Materials Letters,2004,58(7-8):1241-1245. |
| [10] | Wang MD;Shaw LL .Effects of the powder manufacturing method on microstructure and wear performance of plasma sprayed alumina-titania coatings[J].Surface & Coatings Technology,2007(1):34-44. |
| [11] | IBRAHIM D M;ABU-AYANA Y M .Preparation and characterization of uItrafine alumina via sol-gel polymeric route[J].Materials Chemistry and Physics,2008,111(2-3):326-330. |
| [12] | IBRAHIM D M;ABU-AYANA Y M .Preparation of nano alumina via resin synthesis[J].Materials Chemistry and Physics,2009,113(2-3):579-586. |
| [13] | Berger-Keller N.;Bertrand G.;Filiatre C.;Meunier C.;Coddet C. .Microstructure of plasma-sprayed titania coatings deposited from spraydried powder[J].Surface & Coatings Technology,2003(2/3):281-290. |
| [14] | ZHAO X Q;AN Y L;CHEN J M .Preparation of Al2O3-40% ZrO2 composite coatings from nano-sized and micro-sized feedstocks by atmospheric plasma spraying and comparative study on the friction and wear behaviors of the coatings[J].Wear,2008,265(11-12):1642-1648. |
| [15] | 焦素娟,周华,龚国芳,杨华勇.水润滑下Al2O3 、Al2O3+13%TiO2等离子喷涂层的摩擦磨损特性[J].润滑与密封,2002(03):28-29,31. |
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